There is no janitor in Harry Potter at any time.
Yes, in Harry Potter and the Prisoner of Askaban, J.K Rowling introduces Crookshanks, Hermione's ginger cat, into the series.
Crookshanks (Hermione Granger's cat from the Harry Potter series), featured mainly in Harry Potter and the Prisoner of Azkaban, is a male. If you read Harry Potter and the Prisoner of Azkaban, Hermione always refers to Crookshanks as 'he'.
Professor McGonagall is the transfiguration professor at Hogwarts and can turn into a cat. She doesn't follow Harry around though, the cat that does that is Filch the caretakers cat Mrs Norris, who is not a transfigured human.
If you mean Mr. Filch, the creepy caretaker who has a cat named Mrs. Norris, then this is your answer: Argus Filch is played by David Bradley in the Harry Potter Films
Harry Potter himself has no cat. His friend Hermione has a cat, which she calls Crookshanks.
There is no janitor in Harry Potter at any time.
Nobody from the Harry Potter cast died in a car crash.
A tabby cat
Cats.....Wow where did you get the idea that cats were important in Harry Potter...only cat i know in the books in Proffesor Mcgonnagal..SHe's an animagus,Her animagus is a cat
Tabby is Mrs Arabella Figgs' cat.
Cat
Argus Filch's cat is called Mrs. Norris in the Harry Potter series.
Her cat's name is Crookshanks.
Hermione Granger from the Harry Potter series has a cat named Crookshanks.
Mr Tibbles is a cat that belongs to Arabella Figg.
Yes, in Harry Potter and the Prisoner of Askaban, J.K Rowling introduces Crookshanks, Hermione's ginger cat, into the series.